Introduction. EEPROM, or Electrically Erasable Programmable Read-Only Memory, is a type of device that allows you to store small chunks of data and retrieve it. resistor to the same VCC power source as EEPROM, if MCU is powered by a different Figure 1: GIANTEC 24 series EEPROM recommended connections. General Description. The 24C02 / 24C04 provides / bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as.

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Interface SD Card with Arduino. The first number represents the byte position which will be tested.

SPI Module of Arduino. Skip to main content. Arduino based GPS receiver.

The data is read or written between the start and stop conditions on every transition of SCL from high to low. Choosing Battery for Robots. And on the next run write its invert: The circuit is extremely simple. Similarly for read operation the device address to be sent is 0xA0 For more details on different operations and addressing, refer interfacing 24C02 with These type of EEPROMs can be written more than 1 million times and behave like tiny hard drives which make them ideal for data and program storage.


The data is transferred and received serially through serial data SDA pin. There are three address pins in AT24C02 for selecting a particular chip. As homework you can try to change this code into a more effective and simpler one.

Serial EEPROM AT24C02

Virgin Galactic — Commercial Space Flight. Finally a stop condition is provided. Now compile it, open the Serial Monitor and let it run for a while. Around April one of the Arduinos I own, a Nano 3. When data is to be read or write, first a start condition is created followed by device address, byte address and the data itself.

Supply voltage; 5V up to 5. My idea is to write in each byte the following bits: Next, the byte or page address is sent followed by the data byte. This flaw put the 12V from the power supply directly into the 5V line causing a permanent damage to the uC ATmegaP. This high-density System-in-Package SiP feprom controller, power switches, and support components.

24C EEPROM Check –

The software will run indefinitely until it finds a flaw. Vcc enables write protection. Bi-directional pin for serial data transfer. Choosing Motor For Robots. And now the code: The second number is the random value which will be written into that byte.


This data byte is to be written on or read by the microcontroller.

24C02 | EEPROM AT24C02 | Datasheet – Pin Diagram & Description

There are 32 x 8 words each of one byte. This means that the data is retained even if the chip is not being powered.

Your e-mail double check your e-mail or I won’t be able to contact you. Cookies This site uses eeprrom It has a 2Kbits of memory size arranged in 32 pages of 8 byte each. The device can be addressed serially by the software. Interface GPS with Arduino.

This last bit is 1 for write and 0 for read operation. If you need to ask me a question, suggest an enhancement or report a bug, please 42c the contact form below:.

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